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Solubility approach for modeling waste glass liquidus

Published online by Cambridge University Press:  10 February 2011

M. J. Plodinec
M. J. Plodinec*
Affiliation:
Mississippi State University, Diagnostic Instrumentation and Analysis Laboratory, Starkville MS 39759, [email protected]
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Abstract

The liquidus temperature of a waste glass (the temperature at which the system glass + crystalline material is in equilibrium with the amorphous glass of the same composition) often is a measure of the solubility of a specific component in the waste in the base glass. A new approach toward predicting the liquidus temperatures of waste glasses has been developed based on solubility. The approach predicts liquidus temperature as well as more complicated expressions developed by other researchers. At the same time, simple process control limits can be easily derived from this model, which is difficult to do with other approaches. While the approach is not applicable to all waste glass components, it can be used for important species such as nickel-iron spinel, chromium oxide, and probably plutonium dioxide. The approach also has led to two new techniques for determining liquidus of waste glass systems.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 556: Symposium QQ – Scientific Basis for Nuclear Waste Management XXII , 1999 , 223
Copyright
Copyright © Materials Research Society 1999

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References

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